The dogs searched until about 1 a.m., will take a break and come back to work at daybreak, Kansas City Fire Department Chief Paul Berardi said just before midnight at an impromptu news conference at the scene of the fire.

The five-alarm fire started around 6:05 p.m. Tuesday, and it's believed to have been sparked after a construction vehicle struck a gas main. It was contained by 8:25 p.m.